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/'PATENT WILLIAM- A; LIST, oir WHEELING, wnsrl vIRGINIAf; .i

' sTovs-PIPE.

SPECIFICATION farming part or Letters Patent No. 381.021, dated April 1o, Issa.

i To laZZ-tph,o1ot zit` mail] concern: Y

Be it lknown that I, WILLIAM A'. LIs'r, re-

State o West Yirginiznfa citizen of theUnited States, have invented or discovered certainnew andv useful Improvements in Stove-Pipes, of which improvementsl the following is a specification. f

Theiinvention herein relates to certain improvenlents in joints for stove-pipes, whereby siding it Wheeling, in the county of Ohio and sections of pipes may be packed in nests or bundles for shipment, and can then be easily put up without employing skilled labor.

In they accompanying drawings, forming a part of this. specification, Figure `1 is a view in elevation of a pipe-,section embodying my invention. Figs. 2, 3,:4, 5, and 6'are sectional detail views showing modified forins of joint and lock.V Fig. Zis a sectional View ofa portion `of the section showing ay countersink therein.

In the practice of my invention oppositelybent hooks 1 and 2 are formed along the ad lment of the hooks when the pipesection has been put'into use, a series of cleatsor'locking-strips, 3, are secured along one edge of ,the

sheet in such relation to the hook on that edge that when the cleats or strips are bent over the hook on the opposite edge ythe two hooks are tightly held `in engagement with each other. l

The cleat shown in Fig. 2 consists of a narf row strip of sheet metal having -one end slit for a short distance, thereby forming prongs 'or fingers 4, which 'are thrust through a hole formed in the bend of the hook 1 andy thenv bent around the outside of hook, either in the same or opposite directions, as shown. The` Y .cleat or strip being thus secured, the hook 2 is caused to engage the hook 1, and the freel end of the strip is then bent over the hook2, thus firmly locking the two hooks together.

plied is countersunk,'as shownV at k5, Fig. 7,

y hooks.

Application filed June 15,1887. SerialNo. 241,323. (No model.)

In theformshownin Fig. a strip of sheet 5o metal is doubled or bent on itself. The loop thus formed is pushed 'underthe hookffl, andV one part, as a, is then` bent overthepont or edge of the hookl, thussecuringfthei cleat in place. The hook 2 is then caused tol engage the hook 1, the edge or point of the hooi; 2' entering between the two partsof thecleat'..l

The part 5 is'then bent overthe hook 2, secar#l i ing it in place. ,y Y In Fig. 4 the strip is bent as in. Fig. 2; but in lieu of securing the` cleat yin .place by bend- ,i ing `the part a over the hook 1 the part bis riveted to pipe-section;V The hook Y2 is then inserted between the hook land the cleatand thelpart a bent over'the hook 2. i

In Fig. 5`one endv'of'the strip yor-cleatffis riveted to the pipe-section withinV the hook 1 and the freeend of they cleat bent over rthe f hook 2 after thetwohooks havegbeen en:

In the modification shown` inv Fig. 6 the cleat is riveted'to the pipe outside of the pointy or edge of the' hook 1,-but in such proximity' i .i theretothatwhen bent down over the hook", Y'

2, as shown, the two hooks/will be held in engagement. f `r In rorder to make a smooth joint on-the A outer surface of the piper-sections, the sheetf metalat the ,points where thecleats arev ap#- for the reception of the hooks.

Pipe-sections constructed in accordancerv vwith niyinvention can be prepared ready for" use, except thelocking of the hooks, at the shop, and then shippedjto the point of use in nests' or bundles composed of lanumber of cylinders arranged one within the other. Whenrequired for use, the hooks -1 and 2 can be engaged andthe cleats bent'over, as{ded f scribed, thereby forming a complete pipe-sec,- tion. f

`It will be observed that in the constructionl shown in Figs. 2 to 5l one end of `the yportion of thecleauoperative in locking the .'hook'2 is'located within the hook 1, and will therefore prevent any unlocking movement ofthe two Iclaim herein as'myv invention A pipe-section having its adjacent or meet- In testimony whereoflhavehereunto set my ing edges provided with hooks 1 and 2, in comhand. bination with one or more cleats having one of their ends secured within the point oi edge WILLIAM A. LIST. 5 of one of the hooks and their free ends adapted to bend or fold over the other hook when the Vitnesses: two hooks are in engagement with each other, HARDY HENRY, substantially as set forth. l H. KRUOKENBERG. 

